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/*
* Copyright 2018 Advanced Micro Devices, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* Authors: AMD
*
*/
#include "mod_info_packet.h"
#include "core_types.h"
static void mod_build_vsc_infopacket(const struct dc_stream_state *stream,
struct dc_info_packet *info_packet)
{
unsigned int vscPacketRevision = 0;
unsigned int i;
if (stream->timing.timing_3d_format != TIMING_3D_FORMAT_NONE && stream->view_format != VIEW_3D_FORMAT_NONE)
vscPacketRevision = 1;
/*VSC packet set to 2 when DP revision >= 1.2*/
if (stream->psr_version != 0)
vscPacketRevision = 2;
/* VSC packet not needed based on the features
* supported by this DP display
*/
if (vscPacketRevision == 0)
return;
if (vscPacketRevision == 0x2) {
/* Secondary-data Packet ID = 0*/
info_packet->hb0 = 0x00;
/* 07h - Packet Type Value indicating Video
* Stream Configuration packet
*/
info_packet->hb1 = 0x07;
/* 02h = VSC SDP supporting 3D stereo and PSR
* (applies to eDP v1.3 or higher).
*/
info_packet->hb2 = 0x02;
/* 08h = VSC packet supporting 3D stereo + PSR
* (HB2 = 02h).
*/
info_packet->hb3 = 0x08;
for (i = 0; i < 28; i++)
info_packet->sb[i] = 0;
info_packet->valid = true;
}
if (vscPacketRevision == 0x1) {
info_packet->hb0 = 0x00; // Secondary-data Packet ID = 0
info_packet->hb1 = 0x07; // 07h = Packet Type Value indicating Video Stream Configuration packet
info_packet->hb2 = 0x01; // 01h = Revision number. VSC SDP supporting 3D stereo only
info_packet->hb3 = 0x01; // 01h = VSC SDP supporting 3D stereo only (HB2 = 01h).
if (stream->timing.timing_3d_format == TIMING_3D_FORMAT_INBAND_FA)
info_packet->sb[0] = 0x1;
info_packet->valid = true;
}
}
void mod_build_infopackets(struct info_packet_inputs *inputs,
struct info_packets *info_packets)
{
if (info_packets->pVscInfoPacket != NULL)
mod_build_vsc_infopacket(inputs->pStream, info_packets->pVscInfoPacket);
}
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